Apropos the picture of the fake pigeon with a spy camera…. It’s a cute photo, but there’s no way that such a bird would be able to freely fly…. Therefor, I have to conclude that this paritcular exhibit is nothing more but a propaganda piece.

@ renumeratedfrog, that fake pigeon is smaller than a real one, and more importantly, pigeons are the only birds that can create lift on both the upstroke and down-stroke of the wings, creating tremendous lift to weight ratio, you greatly underestimate the pigeon and I suggest you read up on it